1. Product Introduction & Main Application
Arnico’s Polypropylene Random Copolymer (PPR) is a transparent, flexible copolymer produced by the random addition of a small amount of ethylene (1-7%) into the main propylene chain. This structure reduces crystallinity and creates excellent optical clarity and low-temperature toughness. This grade is the primary material for the production of building hot and cold water pipes (green PPR pipes), fittings, transparent films, and medical equipment.
2. Technical Specifications
| Technical Parameter | Hot Water Pipe Grade | Transparent Injection Grade | Unit |
|---|---|---|---|
| MFI (230/2.16 kg) | 0.2 – 0.4 | 10 – 20 | g/10min |
| Tensile Strength at Yield | ≥ 25 | ≥ 26 | MPa |
| Vicat Softening Point (A50) | ≥ 130 | ≥ 125 | °C |
| Izod Impact Strength (23°C) | NB (No Break) | 6 – 8 | kJ/m² |
| Haze (1mm) | Opaque | ≤ 15 | % |
| Density | 0.900 – 0.905 | 0.900 – 0.910 | g/cm³ |
3. Features & Benefits
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Long-Term Hydrostatic Strength: A service life of over 50 years in pressurized hot and cold water networks.
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Excellent Flexibility & Toughness (even at 0°C): Absorbs impact without cracking and is safe against freezing.
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Optical Clarity & Gloss (Specialty Grades): A transparent, safe replacement for PET and PVC in packaging applications.
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Hygienic & Non-Toxic: Suitable for conveying drinking water (WRAS and KTW approvals).
4. Industrial Applications
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Building Plumbing Systems: Hot and cold water pipes and fittings (PPR).
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Medical & Laboratory Industry: Syringes, pharmaceutical vials, and blood bags.
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Transparent Packaging: Beverage bottles and cosmetic containers.
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Food Packaging Films: High-clarity food wrap films.
5. Safety & Handling
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MSDS (Material Safety Data Sheet): The granules are safe and inert. The Arnico MSDS file must be obtained.
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Storage Conditions: Store in multi-layer bags in a dry, cool warehouse, away from direct UV radiation.
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Personal Protective Equipment (PPE): Gloves when handling hot extruded pipes.
6. Quality Assurance & COA
Arnico PPR shipments are accompanied by a complete Certificate of Analysis (COA) detailing the MFI, tensile strength, and Izod impact resistance.
